Сочинительные союзы

простые	парные
and – u, a	not only … but (also) – не только … но и
but – но, однако	both … and – и … и, как … так и
or – или, иначе	или … или, либо … либо
so – поэтому, так что	neither … nor – ни … ни
yet – однако, всё же
however – однако, тем не менее

Для соединения независимых предложений употребляются и некоторые наречия:

moreover – кроме того, более того	then – затем, тогда
nevertheless – тем не менее	otherwise - однако
still – тем не менее, все же, однако	or else – иначе, в противном случае
besides – кроме того	therefore – поэтому

I. Выделите по признакам сложносочиненные предложения. Предложения переведите.

1. Network interface cards can be built in or you can use plug-in adaptors.

2. The manager not only objects to the terms of payment, but he also objects to the time of delivery.

3. Commercial users can communicate over the Internet with the rest of the world and can do it very cheaply.

4. Fixed-base transceivers, such as those used at police stations, can fit on a desktop, and hand-held transceivers have shrunk in size as well.

5. The pulses were caused by contact between two metal surfaces, and receivers interpreted these electrical pulses as tones or beeps.

6. The phenomenon is rather complicated, and the processes involved are not yet clear.

7. Retired people may also use teleworking as a way of working part-time.

II. Объясните роль запятой.

1. Computer data should be backed up frequently and should be stored nearby in secure location.

2. Both keys are used to encrypt, and matching keys are used to decrypt the message.

3. Thus, the receiver uses four satellites to compute latitude, longitude, altitude, and time (in GPS).

4. Semipermanent information storage is also often used for archival purposes, but the media used can be overwritten.

5. With wireless communications people do not need to remain at a fixed location, such as a home or office, but instead can communicate with other people while traveling in a car or walking along a street.

6. Any website can contain hyperlinks to any other web site, so the differentiation one particular site from another, may sometimes be difficult for the user.

III. В следующих сложных предложениях найдите сложноподчиненные бессоюзные предложения.

1. Facebook was not the first social networking website, but its introduction in 2004 was the most influential in the development of the medium.

2. Pure or basic research aims to clarify scientific principles without a specific end product in view; applied research uses the findings of pure research on order to achieve a particular commercial objective.

3. Both Dalvik and native applications run within the same security environment, contained within the Application Sandbox.

4. We have been using plastic packaging for many years; however, next year we are moving to more environmentally-friendly materials.

5. Flash memory is used more as a hard drive than as RAM.

6. Hwang insisted he had no interest in profiting from his discoveries; indeed, he turned over his patent rights to the university and the government.